Month: April 2022

Name: cis-4-Aminocyclohexane carboxylic acid. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Modular click chemistry libraries for functional screens using a diazotizing reagent.

Alkyl and aryl azides were prepared from the corresponding primary alkyl and aryl amines by reaction with fluorosulfonyl azide generated in situ from a fluorosulfonylimidazolium triflate and sodium azide, expanding access to azides and both to the 1,2,3-triazoles derived from them and to functional screens employing them. The method allowed the preparation of a library of >1000 azides from the corresponding amines; the azide library underwent copper-catalyzed azide-alkyne cycloaddition reactions to yield a library of >1000 1,2,3-triazoles.

Compounds in my other articles are similar to this one(cis-4-Aminocyclohexane carboxylic acid)Name: cis-4-Aminocyclohexane carboxylic acid, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Computed Properties of C6Cl2N4. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Structural factors influencing the intramolecular charge transfer and photoinduced electron transfer in tetrapyrazinoporphyrazines. Author is Novakova, Veronika; Hladik, Petr; Filandrova, Tereza; Zajicova, Ivana; Krepsova, Veronika; Miletin, Miroslav; Lenco, Juraj; Zimcik, Petr.

Unsym. tetrapyrazinoporphyrazines (TPyzPzs) from the group of azaphthalocyanines with one peripherally attached amino substituent (donor) were synthesized, and their photophys. properties (fluorescence quantum yield and singlet oxygen quantum yield) were determined The synthesized TPyzPzs were expected to undergo intramol. charge transfer (ICT) as the main pathway for deactivating their excited states. Several structural factors play a critical role in ICT efficiency. The substituent in the ortho position to the donor center significantly influences the ICT, with tert-butylsulfanyl and butoxy substituents inducing the strongest ICTs, whereas chloro, Me, Ph, and hydrogen substituents in this position reduce the efficiency. The strength of the donor pos. influences the ICT efficiency and correlates well with the oxidation potential of the amines used as the substituents on the TPyzPz as follows: n-butylamine < N,N-diethylamine < aniline < phenothiazine. The ICT (with conjugated donors and acceptors) in the TPyzPz also proved to be much stronger than a photoinduced electron transfer in which the donor and the acceptor are connected through an aliphatic linker. Compounds in my other articles are similar to this one(5,6-Dichloropyrazine-2,3-dicarbonitrile)Computed Properties of C6Cl2N4, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Name: 3-Methyl-1H-pyrrole. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Oxidation of mono- and dimethylpyrroles. Author is Gardini, Gian P.; Bocchi, Vittorio.

Reaction of 30% H2O2 with N-methylpyrrole gave 27% N-methyl-2-oxo-2,5-dihydropyrrole (I) R = Me, R1 = H). 2-methylpyrrole gave with 1 mole H2O2 42% hydroperoxide (II, R = H) and with 2 moles H2O2 22% peroxide (III, R = H); 3-methylpyrrole gave 53% I (R = H, R1 = Me); 2,3 dimethylpyrrolc gave IV, and 2,4-dimethylpyrrole gave with 1 mole H2O2 53% II (R = Me) and with 2 moles H2O2, III (R = Me), V, and VI.

Compounds in my other articles are similar to this one(3-Methyl-1H-pyrrole)Name: 3-Methyl-1H-pyrrole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Product Details of 56413-95-7. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Synthesis and solution studies on azaphthalocyanines with quaternary aminoethyl substituents.

A pyrazinedinitrile derivative carrying dimethylaminoethylsulfanyl groups at positions 5 and 6 was synthesized from 2-dimethylaminoethanethiol hydrochloride and 2,3-dicarbonitrile-5,6-dichloropyrazine. The dicarbonitrile gave magnesium azaphthalocyanine (MgAzaPc) when reacted with magnesium propoxide in propanol. The conversion of the MgAzaPc to a metal-free derivative was achieved by treatment with trifluoroacetic acid. Incorporation of transition metal ions into the inner core of azaphthalocyanine was accomplished by treatment of the metal-free derivative with metal acetates, i.e. Zn(OAc)2, Co(OAc)2. These azaphthalocyanines were converted into water-soluble quaternised products by reaction with Me iodide. Aggregation phenomena were followed for magnesium azaphthalocyanine with quaternisable dimethylamino substituents within a specific range of pH. The compounds were characterized by FTIR, 1H NMR, mass and UV-visible spectral data.

Compounds in my other articles are similar to this one(5,6-Dichloropyrazine-2,3-dicarbonitrile)Product Details of 56413-95-7, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Doklady Akademii Nauk SSSR called Photoionization and electron structure of pyrrole and methylpyrroles, Author is Potapov, V. K.; Yuzhakova, O. A., which mentions a compound: 616-43-3, SMILESS is CC1=CNC=C1, Molecular C5H7N, Recommanded Product: 616-43-3.

The appearance potentials were tabulated along with the ionic form for pyrrole, its 1-Me, 1-Bu, 2-Me, 3-Me and 2,4-di-Me analogs, from mass spectrometric data and from photoionization plots. The peculiarity of all these compounds was the existence of sharp rises of ionization thresholds which determine the position of the electronic 0-0 transition corresponding to the 1st adiabatic ionization potential of the mol. The 1st ionization potential of pyrrole is 8.2 ev, which corresponds to electron removal from the upper mol. 1a2 π3 orbital which has a node at the N atom and maximum electron d. at C atoms adjacent to N. The 2nd ionization potential of 9.08 eV corresponds to electron removal from the 2b1 π2 orbital which has maximum electron d. at C atoms not connected to N and a min. at C atoms which are connected to N. The variations of these values with alteration of structure are briefly discussed.

Compounds in my other articles are similar to this one(3-Methyl-1H-pyrrole)Recommanded Product: 616-43-3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Recommanded Product: 616-43-3. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Selective production of pyrroles via catalytic fast pyrolysis of cellulose under ammonia atmosphere at low temperature.

In this study, cellulose was selectively converted into pyrroles via catalytic fast pyrolysis under ammonia atm. over the γ-Al2O3 catalyst. Both in situ and ex situ lab-scale fast pyrolysis sets were designed and used for investigation, and more pyrroles were produced via in situ CFP process. In addition, the effects of catalyst, reaction temperature and catalyst-to-cellulose ratio on the product distribution were investigated systematically. All these factors played important roles in the production of pyrroles. Under the optimized in situ CFP condition, at 400°C and catalyst-to-cellulose ratio at 2, the carbon yield of N-containing chems. from cellulose under ammonia atm. reached 9.7%. The selectivity of pyrroles in N-containing chems. was 89.5%. The possible conversion pathway from cellulose to pyrroles was also proposed, i.e., cellulose was firstly converted into anhydrosugars through thermal decomposition, then anhydrosugars underwent dehydration and rearrangement reactions to form furans. Thereafter, the furans were transformed into pyrroles by reacting with ammonia.

Compounds in my other articles are similar to this one(3-Methyl-1H-pyrrole)Recommanded Product: 616-43-3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Related Products of 56413-95-7. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Reaction of 2,3-dichloro-5,6-dicyanopyrazine with amines.

Reaction of 2,3-dichloro-5,6-dicyanopyrazine (I) with amines gave mono-substituted or bis-substituted products (II; R1 = NH2, NHMe, NEt2, NMe2, pyrrolidino, morpholino; R2 = Cl, NH2, NHMe, NEt2, NHBu). Reaction if I with thioacetamide or 2,3-bis(N-methylamino)-5,6-dicyanopyrazine gave 1,4,6,9-tetraaza-2,3,7,8-tetracyanothianthrene or 2,3,7,8-tetracyano-1,4,6,9-tetraaza-5,10-dimethyl-5,10-dihydrophenazine, resp. Nonlinear optical properties for II as well as biol. activity of 2-[2-(diethylamino)vinyl]-3-chloro-5,6-dicyanopyrazine were evaluated.

Compounds in my other articles are similar to this one(5,6-Dichloropyrazine-2,3-dicarbonitrile)Related Products of 56413-95-7, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about The role of the size of aza-crown recognition moiety in azaphthalocyanine fluorescence sensors for alkali and alkaline earth metal cations.SDS of cas: 56413-95-7.

A series of fluorescence sensors bearing one 1-aza-12-crown-4, 1-aza-15-crown-5, 1-aza-18-crown-6 or 1-aza-21-crown-7 as a recognition moiety and an aza-analog of phthalocyanine as a fluorophore was prepared All compounds absorbed and emitted light in the red region. Sensing properties based on intramol. charge transfer were studied via absorption and fluorescence titration experiments with alkali metal cations and alk. earth metal cations. Important relationships between aza-crown size and binding affinity were observed in the group of alkali metal cations. Affinity for lithium decreased in series from the smallest crown to the largest, 1-aza-15-crown-5 bound sodium and potassium similarly, and 1-aza-18-crown-6 had the highest affinity to potassium. Alk. earth metal cations were bound more tightly, which was obvious from more pronounced changes in the absorption spectra, and from the higher increase of fluorescence upon cation addition A limited size preference was observed in the group of alk. earth metal cations.

Compounds in my other articles are similar to this one(5,6-Dichloropyrazine-2,3-dicarbonitrile)SDS of cas: 56413-95-7, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Recommanded Product: 3-Methyl-1H-pyrrole. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Fractionation and identification of organic nitrogen species from bio-oil produced by fast pyrolysis of sewage sludge. Author is Cao, Jing-Pei; Zhao, Xiao-Yan; Morishita, Kayoko; Wei, Xian-Yong; Takarada, Takayuki.

Pyrolysis of sewage sludge was performed at 500° and a sweeping gas flow rate of 300 cm3/min in a drop tube furnace. Liquid fraction (i.e., bio-oil) from the sewage sludge pyrolysis was separated by silica-gel column chromatog. (SGCC) with different solvents, including mixed solvents, as eluants. Alkanenitriles (C13-C18), oleamide, alkenenitrile, fatty acid amides and aromatic nitrogen species were fractionated from the bio-oil by SGCC and analyzed with a gas chromatog./mass spectrometry (GC/MS). Most of the GC/MS-detectable organic nitrogen species (ONSs) are lactams, amides and N-heterocyclic compounds, among which acetamide is the most abundant. N-heterocyclics with 1-3 rings, including pyrrole, pyridine, indole, benzoimidazole, carbazole, norharman and harman, were observed The lactams detected include pyrrolidin-2-one, succinimide, phthalimide, glutarimide, piperidin-2-one and 3-isobutylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione, all of which should be formed via decarboxylation and cyclization of γ- and δ-amino acids. Such a procedure provides an effective approach to fractionation and identification of ONSs from bio-oil produced by fast pyrolysis of sewage sludge.

Compounds in my other articles are similar to this one(3-Methyl-1H-pyrrole)Recommanded Product: 3-Methyl-1H-pyrrole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Polarographic reducibility of pyrrole and pyrrole substitutes》. Authors are Bonino, G. B..The article about the compound:3-Methyl-1H-pyrrolecas:616-43-3,SMILESS:CC1=CNC=C1).Computed Properties of C5H7N. Through the article, more information about this compound (cas:616-43-3) is conveyed.

cf. C.A. 38, 1230.6. 1-Methylpyrrole, 2-methylpyrrole, 1-allylpyrrole, 2,4-dimethylpyrrole, 2,5-dimethylpyrrole, 3-methylpyrrole, 4-ethylpyrrole, 2,3,5-trimethylpyrrole, 2,5-dimethylpyrrole, 3-ethylpyrrole, 2,4-dimethylpyrrole, and pure 2,3,4,5-tetramethylpyrrole (I) (the latter obtained by the action of K methylate on trimethylpyrrole) in 0.1 N LiCl solution in 80% EtOH were not reduced polarographically. I obtained by the Piloty and Hirsch method (cf. C.A. 7, 1365), containing tetramethylpyrazine (II) as an impurity, showed the same polarographic wave of reduction as II. The findings of Dezelic (Boll. intern. acad. croata sci. e belle arti, 1941) are not correct.

Compounds in my other articles are similar to this one(3-Methyl-1H-pyrrole)Computed Properties of C5H7N, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate